Whenever it appears to the director that a person has engaged in, is engaging in, or is about to engage in, any practice declared to be unlawful by this act, or whenever the director believes it to be in the public interest that an investigation should be made to ascertain whether a person has engaged in, is engaging in, or is about to engage in, any unlawful practice, the director may:
a. Require the person to file, on forms prescribed by him, a written statement or report, under oath or otherwise, concerning the facts and circumstances regarding the practice which is under investigation;
b. Examine under oath any person in connection with the practice under investigation;
c. Examine any record, book, document, account, contract, or paper as he deems necessary; and
d. Pursuant to an order of the Superior Court, impound any record, book, document, account, contract, or paper that is produced in accordance with this act, and retain it until the completion of all proceedings in connection with the materials produced.